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RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - NOTIONAL PRINCIPAL OR QUANTITY INFORMATION (Details) - Sep. 30, 2018 € in Millions, ¥ in Millions, £ in Millions, MMBbls in Millions, $ in Millions, $ in Millions, Bcf in Billions | CAD ($) MWh Bcf MMBbls | USD ($) MWh Bcf MMBbls | GBP (£) MWh Bcf MMBbls | EUR (€) MWh Bcf MMBbls | JPY (¥) MWh Bcf MMBbls
--- | --- | --- | --- | --- | ---
Euro |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2020 | € |  |  |  | € 23 |
Foreign exchange contracts - forwards - purchase | United States dollar |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 |  | $ 591 |  |  |
2019 |  | 3 |  |  |
2020 |  | 1 |  |  |
Foreign exchange contracts - forwards - purchase | Euro |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | € |  |  |  | 42 |
2019 | € |  |  |  | 208 |
Foreign exchange contracts - forwards - purchase | Japanese yen |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2019 | ¥ |  |  |  |  | ¥ 32,662
2022 | ¥ |  |  |  |  | ¥ 20,000
Foreign exchange contracts - forwards - sell | United States dollar |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 |  | 1,592 |  |  |
2019 |  | 3,262 |  |  |
2020 |  | 3,258 |  |  |
2021 |  | 1,689 |  |  |
2022 |  | 1,676 |  |  |
Thereafter |  | $ 3,489 |  |  |
Foreign exchange contracts - forwards - sell | GBP |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2019 | £ |  |  | £ 89 |  |
2020 | £ |  |  | 25 |  |
2021 | £ |  |  | 27 |  |
2022 | £ |  |  | 28 |  |
Thereafter | £ |  |  | £ 149 |  |
Foreign exchange contracts - forwards - sell | Euro |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2021 | € |  |  |  | 94 |
2022 | € |  |  |  | 94 |
Thereafter | € |  |  |  | € 698 |
Interest rate contracts - short-term borrowings |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | $ 1,251 |  |  |  |
2019 | 3,590 |  |  |  |
2020 | 1,093 |  |  |  |
2021 | 121 |  |  |  |
2022 | 93 |  |  |  |
Thereafter | 203 |  |  |  |
Interest rate contracts - long-term receive fixed rate |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | 145 |  |  |  |
2019 | 582 |  |  |  |
2020 | 555 |  |  |  |
2021 | 188 |  |  |  |
2022 | 102 |  |  |  |
Interest rate contracts - long-term debt pay fixed rate |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | 1,894 |  |  |  |
2019 | 600 |  |  |  |
2020 | 573 |  |  |  |
Equity contracts |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | 40 |  |  |  |
2019 | 35 |  |  |  |
2020 | $ 20 |  |  |  |
Commodity contracts | Natural gas |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | Bcf | (7) | (7) | (7) | (7) | (7)
2019 | Bcf | (58) | (58) | (58) | (58) | (58)
2020 | Bcf | (18) | (18) | (18) | (18) | (18)
2021 | Bcf | (5) | (5) | (5) | (5) | (5)
2022 | Bcf | 8 | 8 | 8 | 8 | 8
Thereafter | Bcf | 1 | 1 | 1 | 1 | 1
Commodity contracts | Crude oil |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | MMBbls | 4 | 4 | 4 | 4 | 4
2019 | MMBbls | 4 | 4 | 4 | 4 | 4
Commodity contracts | NGL |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | MMBbls | (1) | (1) | (1) | (1) | (1)
Commodity contracts | Power |  |  |  |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |  |  |  |
2018 | MWh | 57 | 57 | 57 | 57 | 57
2019 | MWh | 64 | 64 | 64 | 64 | 64
2020 | MWh | 66 | 66 | 66 | 66 | 66
2021 | MWh | (3) | (3) | (3) | (3) | (3)
2022 | MWh | (43) | (43) | (43) | (43) | (43)
Thereafter | MWh | (43) | (43) | (43) | (43) | (43)

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